fix(security): [commit](https://codeberg.org/forgejo/forgejo/commit/53c546951115d9e269a2778f90e43b0cb413eab6) Fix and refactor markdown rendering
fix: [commit](https://codeberg.org/forgejo/forgejo/commit/6ac04b8c7dcedb9c6d994bb2a8cd37580394d9dd) Fix oauth2 error handle not return immediately
fix: [commit](https://codeberg.org/forgejo/forgejo/commit/9f05c76b7b84f3cfafd4de22f5f18b87e4c79775) Fix nil panic if repo doesn't exist
fix: [commit](https://codeberg.org/forgejo/forgejo/commit/8cec637d08542535d1dc9689c22943cd3ffe1c45) Disable Oauth check if oauth disabled
